874618-43-6 1-Naphthalenesulfonic acid,4-amino-3-[[4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, disodium salt
220142-58-5 1-Naphthalenesulfonic acid,4-amino-3-[[4-[[4-[(2,4-dihydroxyphenyl)azo]phenyl]amino]-3-sulfophenyl]azo]-5-hydroxy-6-[(4-sulfophenyl)azo]-, trisodium salt